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    <title>Document</title>
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    <script>
        var app = new Vue({
            el: "#app",
            beforeMount() { },
            created() { },      
            mounted() { },
            beforeUpdate() { },
            updated() { },
            beforeDestroy() { },
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            data: {
                name: "Vue.js",
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            methods: {
                bbb() { },
                aaa() { },
            },
            computed: {},
            watch: {},
            filters: {},
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